US3408908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for applying a plurality of patches to envelope blanks in an envelope making machine
Assignee: Tension Envelope Corp
•
Filing: 1967-07-17
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Granted: 1968-11-05
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Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Berkowitz Caroline Newburger
- 👤 Abraham E Margolin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:05
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/82; B31B70/826; B31B2150/00; B31B2160/00; B31B2160/10; B31B2160/102; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/1339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2254217A
Cited
US2956484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |